Joint-gage, level, and miter-square.



T. R. MADDOX. JOINT GAGE, LEVEL, AND MIT ER SQUARE.

APPLICATION FILED OCT. 23, I9I5.

Patented Dec. 26,1916.

3 SHEETS-SHEET I Eltfozvmag T. R. MADDOX JOINT GAGE, LEVEL, AND MITER SQUAREa APPLICATXON FILED OCT. 23,19l5.

Patented. Dec. 26,1916.

3 SHEETS-SHEET 2- T. R. IVIADDOX.

JOINT GAGE, LEVEL, AND MITER SQUARE.

APPLICATION FILED OCT. 23. I915.

Patmted Dec. 26,1916.

3 SHEETSSHEET 3- THOMAS ROSS MADDQX, F CANYON CITY, T EZAS.

.JGINT-GAGE, LEVEL, AND MITEB-SQUARE.

Specification of Letters Patent.

- Dec.

Application filed October 23, 1915. Serial No. 57,589.

To all whom it may concern:

Be it known that I. THOMAS Ross l\'l.-\I) nor. a citizen of the United States. residing at Canyon City, in the county of Randall and State of Texas. haveinvented new' and useful Improvementsin Joint-Gages. Levels, and Miter-Squares. of which the following is a specification,

This invention is an improved joint gage, level, and miter square, especially adapted for use by'brick layers to start corners. on face brick work, for leveling the first brick of each ctmrseybothways, for gaging the mortar joint, and also adapted for use as a plumb and as a miter square,

the invention being to provide an improved toolof this character which is cheap and.

simple in construction, is strong, and durable, and which may be readily adjusted as required' The invention consists in the construction, combination and arrangement of devices,

hereinafter described and claimed.

, 3 isa plan of the same.

erably' channeled in longitudinally while building angle of i5 degrees-to the lower In the accompanying drawings, Figm'e l is a side elevation of a tool constructed and arranged in accordance with my invention. Fig. 2 is a front elevation of the same. Fig. Figs. 4 and 5 are detail sectional views of the same. is a perspective view showing my improved joint gage, level, and miter square when used on a brick or block while building a wall and arranging the inner and outer faces of said brick or'block'in a line vertically with those of the lower courses. Fig. 7 is a similar viewof the same in use for leveling a brick or block transversely and a wall and for also gaging the thickness of the mortar joint between horizontal courses. Fig. 8 is a similar View of the same when used for marking a miter.

The arm 1 of opposite sides as at 2, has lower and upper has its inner end formed with an inclined, plane straight edge or face 5 which is at an edge or face 3. At a suitable distance from the inner end of the arm 1,2; inches are cross arms 6 which are v arranged 'at right angles inches in length and 1 of an inch. in thickness. .A knob handle 7 is on the upper side of the arm 1 at the outer end thereof.

A vertical arm8 is at the outer end of the the object of.

made of brass.

sired thickness between straight edges 3, 4. and

--straight to the arm 1 and each of which is 1% arm 1 and depends from the lower side thereof and is arranged with its inner face 9 at right angles to the st 'aight edge or lower facet oi said arm 1. A gage screw 10 has its stem threaded in a threaded bore of the vertical arm and is provided with a circularhead l which is e of an inch. in diameter and e of an inch in thickness, The gage screw may-be secured at desired adjustment by a set screw 12.

A spirit'levei 1B is arranged transversely in the upper side of the arm. 1 at the intersection of the cross arms 6. A. spirit level 14 is arranged longitudinally in the upper side of said arm 1 at asuitable point he tween the lever'13 and the icooh handle i, these spirit levels. being secured in place by a T'shaped plate 15 which is preferabiy erably a casting of ironor steel. A levei 16 is secured vertically in the outer end or of the arm 1 and held by a plate 17.

In the use of the tool, the arm 2 with its straight edges 3, 4 and its inclined end 5 may be employed for marking'the miter. The cross arms 6 serve to hear on a brick transversely and in connection with the isver 13 adapt the tool to be used for leveiing a brick transverselywhile building a Wall, the level 1% coacting with long arm 1 to level the brick longitudinally. The vertical arm 8 coacts with the arm 2 for plumh" ing a brick at the end to cause the brick to aline vertically with those of lower courses. The screw 10 is for use as a mortar gageto secure a mortar joint of any dethe horizontal courses, said screw hearing on the lower bricks While the arms 2 and 6 beer on a The tool is otherwise preibrick which is being laid and the screw he Having described the invention, is

claimed is: I a

1. The hereindescribed brick layers tool comprising a longitudinal arm having plane parallel upper and lower faces, cross arms extending from opposite sides of thefirso named arm and at right angles thereto,

adjusted according to the desired thickv ness of the sm rter. my improved tool is pref-- parallel upper and lower faces,

- \erl-icnl arm depending from the outer end of the first-nanwl arm. a gage screw 1n the lower end of said verlienl arm and levels in and outer end of the'first- "and a set screw to se'cnrethe gage-screw in :rdjustgul position.

the upper side n'anied arm.

'2. The herein dc ihed brickcomprising av longitl'idiii'alarm having plane cross imns extending frem opposite sides of the-first named arrn and at right angles thereto, a vertical arnr depending from t-lIOKHItQIEIlCl M The, first-named arm. a gage screw in the v I arm, and a handle knob at the outer end layers tool.

lower end Ola Said Vertical arm, levels in the upper side and outer end of the first-named and J5 on the upper side of the first-named arm,

In testimony whereof I afiixmy signature in presenc'eef.two-witnesses; I THOMAS ROSS MADDOX.

Witnesses Y 1 I. S. FISHER, A. E. BARKER. 

